2-Acetylbutyrolactone → HCID 178432037, Verbindung

HRID 584785Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 584785
Br.[NH2:2][C:3]1[NH:7][N:6]=[C:5]([CH3:8])[C:4]=1[Br:9].[C:10]([CH:13]1[CH2:18][CH2:17][O:16][C:14]1=[O:15])(=O)[CH3:11]>C(O)C>[Br:9][C:4]1[C:5]([CH3:8])=[N:6][N:7]2[C:14]([OH:15])=[C:13]([CH2:18][CH2:17][OH:16])[C:10]([CH3:11])=[N:2][C:3]=12

Komponenten

4

Versuchsvorschrift

A solution of 5-amino-4-bromo-3-methylpyrazole hydrobromide (13 g, 51 mmol) and α-acetyl-γ-butyrolactone (6.8 g, 53 mmol) in ethanol (65 mL) was heated under reflux for nine hours. After cooling to room temperature, the resulting crystals were collected by filtration, to give the title compound (4.6 g) as white crystals.

Aufarbeitung

  1. temperatureunder reflux for nine hours
  2. filtrationthe resulting crystals were collected by filtration

Quellen und Nachweise

ORD-Eintrag
ord-2cd44a524e9f49f69c89ed165c11953c
Quelldatensatz
uspto-grants-2005_08
Patentnummer
US06927221B2

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